Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 23: Poster 2: Intersectional Session

Q 23.24: Poster

Tuesday, March 15, 2011, 18:00–21:00, P1

Towards an efficient quantum memory using atomic vapour — •Tobias Latka, Andreas Neuzner, Eden Figueroa, and Gerhard Rempe — Max-Planck-Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching

One of the main challenges in the implementation of quantum memories is achievement of high retrieval efficiency. State of the art experiments report efficiencies as high as 45% [1]. Nonetheless, higher values are required e.g. for the implementation of an efficient quantum repeater. A new approach based on off-resonant photon echoes in three-level atoms has paved the way for higher storage efficiencies [2]. We present our current results towards the implementation of such a device in Rubidium vapor. We discuss our simulations regarding the design of coils capable of producing the essential switchable linear field gradient required for the photon echoes generation, experimentally achievable efficiencies, and the future use of the system in combination with a cavity QED based source of single photons [3].

[1] I. Novikova, et al., Phys. Rev. A 78, 021802 (2008)

[2 ]M. Hosseini, et al., arXiv: 1009.0567v1 (2010).

[3] M. Hijlkema, et al., Nature Physics 3, 253 (2007).